mintz considers himself a pioneer in this gray area of law and science, and there are plenty of patients eager to follow the trail he's blazing. the ones we talked to in las vegas, all eager to remain young and vital, consider this a lifestyle choice, and they're prepared to roll the dice. you aren't concerned that five years from now, somebody might do a study and find out that this regimen accelerates the growth of cancer cells or causes diabetes? >> well, that's happened with prescriptive drugs. i mean, has it not? so this is any-- in any field you're doing this. they're taken drugs off the market because of this. >> so you'd rather feel better now while you're living your life than worry about the possibly downside 10 or 15 years from now? >> you could get killed on the interstate tomorrow. i mean, my goodness. i mean, it's-- you have to weigh risks and rewards. you do that every day in life. you do it when you get up in the morning. >> are you sure, are you absolutely positive, absent any scientific studies, that the treatments that you're giving now won't prove to be detrimental to